公开(公告)号：US20090185887A1

公开(公告)日：2009-07-23

申请号：US12352638

申请日：2009-01-13

Applicant: Jin Woo LEE

Inventor： Jin Woo LEE

IPC: E02F3/28

CPC classification number: F15B15/1457

Abstract: A hydraulic cylinder having a rod safety device is provided, which can prevent a free falling of an arm and a bucket by fastening members when a welding part is broken to protect a cab and an operator. The hydraulic cylinder having a rod safety device which includes a cylinder rod sliding within a set stroke range in a tube and composed of a rod head and a rod body joint-connected to the rod head; a cover connected by weld joint to one end part of the tube; an end cover connected by weld joint to the other end part of the tube; a piston fastened to one end part of the cylinder rod to reciprocate along an inner periphery of the tube; and a connection means composed of a screw engagement part formed in center parts of mutual contact surfaces of the rod head and the rod body in a shaft direction to joint-connect the rod head and the rod body by screw-engaging the rod head and the rod body, and a weld joint part joint-connecting the rod head and the rod body by welding outer peripheries of the contact surfaces of the rod head and the rod body.

Abstract translation: 提供了一种具有杆安全装置的液压缸，当焊接部件被破坏时，可以防止臂和铲斗由紧固件自由落下，以保护驾驶室和操作者。 液压缸具有杆安全装置，该杆安全装置包括在管内在设定行程范围内滑动的柱杆，并由杆头和与杆头连接的杆体构成; 通过焊接接头连接到管的一个端部的盖; 端盖通过焊接接头连接到管的另一端部; 固定在所述气缸杆的一个端部的活塞沿着所述管的内周往复运动; 以及连接装置，其由在杆方向上的杆头和杆体的相互接触表面的中心部分上形成的螺纹接合部分组成，以通过螺杆接合杆头和杆头来将杆头和杆体接合连接 杆体和焊接接头部分，通过焊接杆头和杆体的接触表面的外围，将杆头和杆体接合连接。

公开(公告)号：US20120172551A1

公开(公告)日：2012-07-05

申请号：US13296681

申请日：2011-11-15

Applicant: Sang Yull KIM ,  Jin Woo LEE ,  Eun Il KIM ,  Joon Ryeo PARK

Inventor： Sang Yull KIM ,  Jin Woo LEE ,  Eun Il KIM ,  Joon Ryeo PARK

IPC: C08F4/76 ,  C08F10/06 ,  C08F2/00

CPC classification number: C08F110/06 ,  C08F2500/05 ,  C08F2500/12 ,  C08F2500/15 ,  C08F4/651

Abstract: A solid catalyst for propylene polymerization includes titanium, magnesium, halogen and a maleate compound as an internal electron donor. A method for preparing propylene using the catalyst is also described. According to the present invention, it is possible to prepare polypropylene having a wide molecular weight distribution.

Abstract translation: 用于丙烯聚合的固体催化剂包括钛，镁，卤素和作为内电子给体的马来酸酯化合物。 还描述了使用该催化剂制备丙烯的方法。 根据本发明，可以制备具有宽分子量分布的聚丙烯。

公开(公告)号：US20120146928A1

公开(公告)日：2012-06-14

申请号：US13324064

申请日：2011-12-13

Applicant: Jin Woo LEE

Inventor： Jin Woo LEE

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0418 ,  H04B15/04 ,  H04M2250/22

Abstract: A method and portable terminal for controlling an operation of a touch panel are provided. The portable terminal includes a memory for storing at least one program for supporting a user function operated based on a certain frequency upon activation of the user function, a touch panel, activated when the user function is supported, for supporting a touch function, and a controller for selecting frequency information that does not interfere with the certain frequency for operating the corresponding user function when the at least one user function is activated, and for setting the selected frequency information as a scanning frequency of the touch panel.

Abstract translation: 提供了一种用于控制触摸面板的操作的方法和便携式终端。 便携式终端包括用于存储用于在激活用户功能时支持基于特定频率操作的用户功能的至少一个程序的存储器，当支持用户功能时激活的触摸面板，用于支持触摸功能，以及 控制器，用于当所述至少一个用户功能被激活时，选择不干扰所述特定频率的频率信息以操作相应的用户功能，并且将所选择的频率信息设置为所述触摸面板的扫描频率。